Griggs Racing uses Ground Control struts in their GR40ST package; actually, Ground Control only makes the outter strut housing, everything inside of it is Koni and GC's rear shocks are Koni.
I ran the GC system before I went with Griggs, good stuff made right although they started me out with 390# front springs and they were not enough spring for the GT500, 450# worked in the front with 250# in the rear. GC also uses Eibach springs. Jay is The Man at GC should you need a contact.
Hope that helps :thumbsup:
Thanks guys, I was thinking of going with the FRPP kit but someone told me I would be saving a lot of weight if I went with the coil overs.
rlhay2 is the ride rough on your eibachs?
Griggs Racing uses Ground Control struts in their GR40ST package; actually, Ground Control only makes the outter strut housing, everything inside of it is Koni and GC's rear shocks are Koni.
Here's what I have:
There rears are not true coil overs, I believe Griggs is the only one with a true street based coil over system at this time.
I am currently running my car on the 2 softest setting on the front and the 3rd softest on the rear. The ride is a bit firmer than stock but not at all harsh. It's perfect above 80 and when autocrossing or on the track!
The Eibach kit at max height is 1.5" lower than stock. And it can go another ~1.5 lower if desired.
Hope this helps,
Here's what I have:
There rears are not true coil overs, I believe Griggs is the only one with a true street based coil over system at this time.
I am currently running my car on the 2 softest setting on the front and the 3rd softest on the rear. The ride is a bit firmer than stock but not at all harsh. It's perfect above 80 and when autocrossing or on the track!
The Eibach kit at max height is 1.5" lower than stock. And it can go another ~1.5 lower if desired.
Hope this helps,
Why is it Griggs does not manufacture their own coil overs front and rear?
I'd be guessing if I tried to answer this question, but the reason could be the same as above.Also, why is it Ground Control uses Koni parts for their coil over kit.
The only thing I don't like about the Steeda and Eibach is that the rear is not an actual coil over set up, just an adjustable perch
You're right and I was wrong, it's Griggs' SS package, not ST, that comes with the GC front struts.
I've used both in my GT500 and true rear coil overs produce a completely different feel then shocks with stock location springs and adjustable spring perches.
FRPP's complete kit exceeds almost 100lbs. Average coil-over kit weighs in at 50 lbs.
Weight savings + endless adjustability = sure winner is coil overs.:beer:
Last thing any GT500 needs is a SINGLE Pound of added weight... anywhere.
Do you think that the extra weight comes from the sway bars? I'm just wondering since I would want to upgrade the sways either way... coil over or FRPP.
I agree about the weight. I'd love to pull about 300 pounds off this car
No. The extra weight starts at the springs and ends with the shocks/struts. Their sway bars also weight more as well. Once you add all the parts together the total difference is around 26lbs.
So the difference between the Eibach Coilovers and the FRPP kit is 26lbs?